Apparatus

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sensors Mode-S transponder

A1B9CE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N210DA · BEECH 58 Baron · operated by BARON 210CH LLC

Hex
A1B9CE
Octal
50334716
Decimal
10,598,862
Country
US
Tail
N210DA
Type
BE58
No current signal · last broadcast 15h ago
Flights observed
81
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A1B9CE.

Country allocation

The ICAO 24-bit address A1B9CE falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N210DA - 81 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N210DA - Jul 20, 20:45 UTCJul 20, 22:00 UTC1h 15m
2026-07-20 N210DA - Jul 20, 15:20 UTCJul 20, 16:25 UTC1h 5m
2026-07-17 N210DA WGO → FRR Jul 17, 21:34 UTCJul 17, 21:44 UTC10m
2026-07-16 N210DA - Jul 16, 22:49 UTCJul 16, 22:59 UTC10m
2026-07-16 N210DA - Jul 16, 21:19 UTCJul 16, 22:10 UTC50m
2026-07-16 N210DA - Jul 16, 16:15 UTCJul 16, 18:34 UTC2h 20m
2026-07-15 N210DA - Jul 15, 21:35 UTCJul 15, 22:05 UTC30m
2026-07-15 N210DA - Jul 15, 20:05 UTCJul 15, 20:30 UTC25m
2026-07-15 N210DA - Jul 15, 17:40 UTCJul 15, 18:35 UTC55m
2026-07-15 N210DA - Jul 15, 15:25 UTCJul 15, 17:05 UTC1h 40m
2026-07-14 N210DA - Jul 14, 19:45 UTCJul 14, 20:00 UTC15m
2026-07-14 N210DA - Jul 14, 17:55 UTCJul 14, 19:00 UTC1h 5m
2026-07-14 N210DA - Jul 14, 16:20 UTCJul 14, 17:25 UTC1h 5m
2026-07-14 N210DA - Jul 14, 14:15 UTCJul 14, 15:20 UTC1h 5m
2026-07-13 N210DA - Jul 13, 21:30 UTCJul 14, 00:05 UTC2h 35m
2026-07-13 N210DA - Jul 13, 20:30 UTCJul 13, 20:40 UTC10m
2026-06-26 N210DA - Jun 26, 15:29 UTCJun 26, 15:49 UTC20m
2026-06-26 N210DA - Jun 26, 13:59 UTCJun 26, 14:55 UTC55m
2026-06-26 N210DA - Jun 26, 12:10 UTCJun 26, 12:34 UTC25m
2026-06-25 N210DA - Jun 25, 19:29 UTCJun 25, 21:05 UTC1h 35m
2026-06-24 N210DA WGO → FRR Jun 24, 21:19 UTCJun 24, 21:29 UTC10m
2026-06-24 N210DA - Jun 24, 19:00 UTCJun 24, 20:09 UTC1h 10m
2026-06-24 N210DA - Jun 24, 15:59 UTCJun 24, 16:34 UTC35m
2026-06-24 N210DA - Jun 24, 12:04 UTCJun 24, 13:14 UTC1h 10m
2026-06-17 N210DA - Jun 17, 19:30 UTCJun 17, 19:40 UTC10m
2026-06-17 N210DA - Jun 17, 17:35 UTCJun 17, 18:45 UTC1h 10m
2026-06-17 N210DA - Jun 17, 15:10 UTCJun 17, 16:10 UTC1h 0m
2026-06-11 N210DA - Jun 11, 20:00 UTCJun 11, 20:10 UTC10m
2026-06-11 N210DA - Jun 11, 18:25 UTCJun 11, 19:15 UTC50m
2026-06-11 N210DA - Jun 11, 15:35 UTCJun 11, 15:50 UTC15m
2026-06-09 N210DA - Jun 9, 23:30 UTCJun 10, 00:45 UTC1h 15m
2026-06-09 N210DA - Jun 9, 19:40 UTCJun 9, 21:25 UTC1h 45m
2026-06-08 N210DA - Jun 8, 16:30 UTCJun 8, 18:35 UTC2h 5m
2026-06-07 N210DA - Jun 7, 19:50 UTCJun 7, 21:45 UTC1h 55m
2026-06-07 N210DA - Jun 7, 14:50 UTCJun 7, 17:05 UTC2h 15m
2026-06-04 N210DA - Jun 4, 18:40 UTCJun 4, 19:50 UTC1h 10m
2026-06-04 N210DA - Jun 4, 14:55 UTCJun 4, 16:45 UTC1h 50m
2026-06-03 N210DA FRR → FRR Jun 3, 23:30 UTCJun 4, 00:25 UTC55m
2026-06-02 N210DA - Jun 2, 22:20 UTCJun 3, 00:10 UTC1h 50m
2026-06-02 N210DA - Jun 2, 19:30 UTCJun 2, 21:35 UTC2h 5m
2026-06-02 N210DA - Jun 2, 16:05 UTCJun 2, 16:20 UTC15m
2026-06-02 N210DA - Jun 2, 14:10 UTCJun 2, 15:10 UTC1h 0m
2026-06-02 N210DA - Jun 2, 12:25 UTCJun 2, 12:40 UTC15m
2026-06-01 N210DA - Jun 1, 22:20 UTCJun 1, 23:25 UTC1h 5m
2026-06-01 N210DA - Jun 1, 16:40 UTCJun 1, 18:55 UTC2h 15m
2026-05-31 N210DA - May 31, 21:00 UTCMay 31, 21:20 UTC20m
2026-05-31 N210DA - May 31, 16:05 UTCMay 31, 16:20 UTC15m
2026-05-30 N210DA - May 30, 15:10 UTCMay 30, 17:10 UTC2h 0m
2026-05-29 N210DA - May 29, 18:55 UTCMay 29, 20:50 UTC1h 55m
2026-05-29 N210DA - May 29, 15:45 UTCMay 29, 16:50 UTC1h 5m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N210DA page for operator, model, and routing details .

Mode-S A1B9CE frequently asked

What is Mode-S code A1B9CE?
A1B9CE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N210DA.
Where is Mode-S A1B9CE registered?
Mode-S code A1B9CE is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A1B9CE broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1B9CE, octal 50334716, decimal 10,598,862.
What flights does A1B9CE operate?
Mode-S A1B9CE has broadcast 1 distinct callsign, including N210DA.